Water is made up of two elements,hydrogen and oxygen.It chemical formula is H 2 O.Water has three different of states liquid,solid and gas.The word weater usually refers to water its in liquid state.The solid state of water is known as ice while gas state of water is known as stream or water vapor.Water covers around 70/ of the Earth's surface.All living things must have water to survive.Without water your body would stop working.Please use water wisely.